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Potato Yeast

A fermented potato dough made with flour, sugar, salt, ginger, and yeast.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Potato Yeast

Why it works: Potato and ginger work together. They rank in the top 12% of all ingredient pairs, and cooks put them together in 992 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Potato Yeast

Ingredients

Directions

Prepare

  1. Peel and grate the potatoes into cold water.

  2. Add flour to the water and mix to a smooth paste.

Make the dough

  1. Cook the mixture on the stove for 10 minutes, stirring occasionally.

  2. Add sugar, salt, and ginger while cooking.

  3. Remove from heat and let cool.

  4. Stir in the yeast cake soaked in warm water.

  5. Pour into a large jar and let ferment for 2 days.

  6. Store in fruit jars; refrigerate in summer.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Photo for illustrative purposes only · Contact us to use it

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Potato + gingertop 12% of all pairs
    Smell alikemoderate
    Cooked together992 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  3. Potato + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together5,355 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Flour + gingertop 15% of all pairs
    Smell alikemoderate
    Cooked together8,564 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Sugar + gingertop 17% of all pairs
    Smell alikelow
    Cooked together14,054 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

Sugar and ginger barely smell alike, yet cooks put them together in 14,054 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Potatoes
Provide starch that cooks into the thick body of the dough.
Flour
Thickens the mixture into a smooth paste that holds the grated potato together.
Sugar
Feeds the yeast during fermentation and adds sweetness.
Yeast cake
Ferments the mixture, producing gas and sourness as it works.

The step that matters

Let the mixture cool before adding the yeast. Yeast is killed or slowed by high heat, so the cooked mixture must be cool before the yeast cake goes in. Adding it too early can stop fermentation.

Swap the potato

How well each one fits the dish's main ingredients (flour, sugar, ginger):

  1. Arrowrootfits better
  2. Sweet potatofits better
  3. Parsnipfits better
  4. Potatothe original

Fit is the average pairing score against flour, sugar, ginger. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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